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High accuracy oriented perforator

A technology for positioning and perforating, which is applied in the direction of earthwork drilling, production fluid, wellbore/well components, etc., can solve the problems of poor effect and inability to meet the needs of oil and gas field exploration and development, and achieve simple structure and prevent failure. Sand, the effect of increasing productivity

Active Publication Date: 2010-09-08
中石化石油工程技术服务有限公司 +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

For many reservoirs, the effect of this perforation positioning technology is not good, and it cannot meet the needs of oil and gas field exploration and development.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0026] Such as Figure 1-9 As shown, the trapezoidal external thread 102 of the gun head 1 is connected to the upper end of the upper perforating gun body 5, the sealing ring groove 103 realizes sealing, the thread 101 is connected to the internal thread 204 of the adjusting ring 2, and the corrugated spring 3 is compressed to push the positioning locking ring 4. Lock the upper end of the upper perforating gun body 5 so that the fixing hole 202 and the positioning hole 402 are aligned with the threaded hole 104, and screw on the screw to fix it.

[0027] The trapezoidal thread 602 at the upper end of the middle upper joint 6 for positioning is connected to the lower end of the upper perforating gun body 5, the sealing ring groove 604 at the upper end of the middle upper joint 6 for positioning realizes sealing, and the thread 601 is connected to the internal thread 204 of the adjusting ring 2, and the compression corrugated spring 3 Push the positioning ring 4 to lock with the...

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PUM

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Abstract

The invention relates to a high accuracy oriented perforator which comprises a perforating gun head, a regulation ring, a location locking ring, an upper perforating gun body, an oriented middle upper joint, an oriented middle lower joint, a lower perforating gun body, a perforating gun tail and a corrugated spring. Compared with the prior art, the invention has the advantages of simple structureand convenient use, and can accurately fix the perforation direction and position in any direction and on any position, enhance the productivity, prevent sand production and lower the well completioncost.

Description

1. Technical field [0001] The invention relates to the technical field of oil and gas well perforators, in particular to a high-precision azimuth-fixed perforator. 2. Background technology [0002] At present, in vertical wells and inclined wells, the azimuth perforating devices used for perforating oil and gas wells are connected by jackscrews. During the rotation of the pipe string, the perforating directions of the two interconnected perforating devices change accordingly. The longer the well section is, the more perforating guns are connected, and the corresponding error increases. For many reservoirs, the effect of this perforation positioning technology is not good, and it cannot meet the needs of oil and gas field exploration and development. 3. Contents of the invention [0003] The purpose of the present invention is to aim at the defects existing in the prior art, and to provide a high-precision azimuth-oriented shotgun that can precisely fix the direction and p...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E21B43/116
Inventor 董经利李山生朱留方张林刘增周广清卢朝夕周景峰邱明文
Owner 中石化石油工程技术服务有限公司
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